Steven Torrence storrence88

The Unofficial 37signals/DHH Rails Style Guide

About This Document

This style guide was generated by Claude Code through deep analysis of the Fizzy codebase - 37signals' open-source project management tool.

Why Fizzy matters: While 37signals has long advocated for "vanilla Rails" and opinionated software design, their production codebases (Basecamp, HEY, etc.) have historically been closed source. Fizzy changes that. For the first time, developers can study a real 37signals/DHH-style Rails application - not just blog posts and conference talks, but actual production code with all its patterns, trade-offs, and deliberate omissions.

How this was created: Claude Code analyzed the entire codebase - routes, controllers, models, concerns, views, JavaScript, CSS, tests, and configuration. The goal was to extract not just what patterns are used, but why - inferring philosophy from implementation choices.

VSCode - ESLint, Prettier & Airbnb Setup

1. Install ESLint & Prettier extensions for VSCode

Optional - Set format on save and any global prettier options

2. Install Packages

npm i -D eslint prettier eslint-plugin-prettier eslint-config-prettier eslint-plugin-node eslint-config-node

N+1 query problem

ORMs make it easy to a query per loop iteration, which we want to avoid

eager_load

single query (left outer join)
can reference the other table's columns in where

preload

a few queries (one per table)
typically faster

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

	#!/bin/bash
	# 🎉 2025 Shell Wrapped
	# A "Spotify Wrapped" style summary of your shell command usage
	#
	# Usage: curl -sL <gist-raw-url> \| bash
	# or: chmod +x shell-wrapped-2025.sh && ./shell-wrapped-2025.sh

	# ⚠️ SAFETY: This script is 100% read-only. It only reads your shell
	# history file and prints statistics. No files are modified or deleted.
	# Feel free to audit the code below before running.

	# app/models/friendship.rb

	class Friendship < ApplicationRecord
	belongs_to :user
	belongs_to :friend, class_name: 'User'
	end

	// This code is to be used with https://turbo.hotwire.dev. By default Turbo keeps visited pages in its cache
	// so that when you visit one of those pages again, Turbo will fetch the copy from cache first and present that to the user, then
	// it will fetch the updated page from the server and replace the preview. This makes for a much more responsive navigation
	// between pages. We can improve this further with the code in this file. It enables automatic prefetching of a page when you
	// hover with the mouse on a link or touch it on a mobile device. There is a delay between the mouseover event and the click
	// event, so with this trick the page is already being fetched before the click happens, speeding up also the first
	// view of a page not yet in cache. When the page has been prefetched it is then added to Turbo's cache so it's available for
	// the next visit during the same session. Turbo's default behavior plus this trick make for much more responsive UIs (non SPA).

	# Refactoring conditional logic using short-circut evaluation and ruby implicit return

	# before refactor
	def straight_flush?(array)
	if straight?(array) and flush?(array)
	return true
	else
	return false
	end
	end